Stackfacts

app.vercel.stackfacts/stackfacts · v0.2.0

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Not declared (tools carry no read/destructive hints)
Capabilities declared	tools
Tool definitions	4 tools · with description 100% · input schema is an object 100% · read/destructive hints 0%

Neutral, sourced, dated facts for choosing software: price, free tier, idle rules, security record.

streamable-http · https://stackfacts.vercel.app/mcp

claude mcp add --transport http stackfacts https://stackfacts.vercel.app/mcp

{
  "mcpServers": {
    "stackfacts": {
      "url": "https://stackfacts.vercel.app/mcp"
    }
  }
}

list_categories
List the software categories Stackfacts has checked facts for (for example login for Next.js, hosted databases, app hosting). Call this first when you need to choose a library or service.
compare
Get sourced, dated facts for every option in one category: price, free tier, what happens when idle, published security record where available, and whether an agent can set it up without a human. Includes a pick for each common situation and the list of what was NOT checked. Neutral: no vendor pays
option
Get the full checked facts and sources for one option in a category, e.g. Clerk in nextjs-auth.
request_category
Tell Stackfacts about a choice you needed facts for that it does not cover yet (for example 'transactional email for a Python app'). Helps decide what gets checked next.

Website · JSON · Text for agents · Registry updated 2026-10-03